code: def validate_layout(layout, layout_value):
      if layout is None:
          raise exceptions.NoLayoutException(
              """
              The layout was `None` at the time that `run_server` was called.
              Make sure to set the `layout` attribute of your application
              before running the server.
              """
          )
  
      layout_id = stringify_id(getattr(layout_value, "id", None))
  
      component_ids = {layout_id} if layout_id else set()
      for (
          component
      ) in layout_value._traverse():  # pylint: disable=protected-access
          component_id = stringify_id(getattr(component, "id", None))
          if component_id and component_id in component_ids:
              raise exceptions.DuplicateIdError(
                  f"""
                  Duplicate component id found in the initial layout: `{component_id}`
                  """
              )
          component_ids.add(component_id)
  
imports: from collections.abc import MutableSequence
  import re
  from textwrap import dedent
  from keyword import iskeyword
  import flask
  from ._grouping import grouping_len, map_grouping
  from .development.base_component import Component
  from .None import exceptions
  from ._utils import patch_collections_abc, stringify_id, to_json, coerce_to_list, clean_property_name
label_desc: Use image node_id 13 for calling a global function with example usage: validate_layout(layout, layout_value) without return types